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9925 (1981 EU24)
Classification: Main-belt Asteroid          SPK-ID: 2009925
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09703507486057733 5.8082e-08  
a 2.80604107144117 3.0441e-08 au
q 2.533756666012022 1.6292e-07 au
i 3.224325558579147 6.6761e-06 deg
node 329.2212771110567 0.00010513 deg
peri 64.45145385278893 0.00011082 deg
M 327.79851059474 4.0938e-05 deg
tp 2457754.072311341909
(2016-Dec-31.57231134)
0.0001966 JED
period 1716.878104217639
4.70
2.7938e-05
7.649e-08
d
yr
n .2096829117429089 3.4121e-09 deg/d
Q 3.078325476870319 3.3395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      12177 days (33.34 yr)  
   first obs. used      1981-02-12  
   last obs. used      2014-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56105  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:31:48  

Additional Information
 Earth MOID = 1.5404 au 
 Jupiter MOID = 2.32294 au 
 T_jup = 3.314 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO263438  

9925 (1981 EU24)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EU24 = 1988 VX13 = 1997 RG7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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